Orbit 55662 Voyager II Professional 4" Adjustable Pop-Up Gear Drive Rotor Sprinkler Spray Head, 40&deg; to 360&deg; Pattern, 25' -52 Distance Quiet, dependable gear drive. Standard 3/4 inch female inlet thread. Ideal for Medium to Large Lawn Areas Spray adjusts from a 20 ft. to a 40 ft. radius in a part or full circle. 4 inch pop-up height. Compatible with all major brands of gear drive rotors including Rainbird, Hunter, and Toro Bonus: Contains 8 Nozzles and Adjustment Key.